ZyXEL Communications GS2220 Series - CPU Protection Configuration

Chapter 33 Error-Disable
GS2220 Series User’s Guide
311
33.4 CPU Pro te c tio n C o nfig ura tio n
Use this screen to limit the maximum number of control packets (ARP, BPDU and/or IGMP) that the
Switch can receive or transmit on a port. Click the C lic k He re link next to CPU pro te c tio n in the
Adva nc e d Applic a tio n > Errdisa ble screen to display the screen as shown.
Note: After you configure this screen, make sure you also enable error detection for the
specific control packets in the Adva nc e d Applic a tio n > Errdisa ble > Errdisa ble De te c t
screen.
Fig ure 236 Advanced Application > Errdisable > CPU protection
The following table describes the labels in this screen.
Status This field displays the errdisable status
• Fo rwa rding : The Switch is forwarding packets. Rate-limitation mode is always in Fo rwa rding
status.
• Err- disa b le : The Switch disables the port on which the control packets are received
(ina c tive - po rt) or drops specified control packets on the port (ina c tive - re a so n).
Recovery
Time Left
(secs)
This field displays the time (seconds) left before the ports becomes active of Errdisable
Recovery.
Total
Dropped
This field displays the total packet number dropped by this port where the packet rate exceeds
the rate of mode rate-limitation.
Table 153 Advanced Application > Errdisable > Errdisable Status (continued)
LABEL DESCRIPTIO N
Table 154 Advanced Application > Errdisable > CPU protection
LABEL DESCRIPTIO N
Reason Select the type of control packet you want to configure here.
Port This field displays the port number.